As we can see, not even 40 percent of all IEOs on the market were successful and this is another argument for the statement, that exchanges are much more important than a project itself nowadays and this is very sad, because nobody cares about the real value anymore.
We need to understand one thing that like there is difference is the quality and ratings of exchanges out there, the IEO conducted by such exchanges would also be different in different ways. IEO conducted by Binance and Bittrex have been super successful and they achieved their hard cap in minutes. When it comes to IEO conducted by other not so famous exchanges, I agree that they have been not so successful.